It is Possible to Remover Dermal Fillers with Surgery?

Almost 7 years ago I went to a cosmiatry in my country. I was concerned because I have scarring in my face due to acne and severe chicken pox. She suggested some type of fillers to reduce the appearance of the scars. I am no sure what was injected in my face but it was supposed to dissolve after 2 years according to her. The thing is that now I have like permanent pimples in my face. It looks very bad. I am desperate and I want to know if there is a surgical way to remove these fillers.